From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 079BCC433E7 for ; Fri, 9 Oct 2020 08:18:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B419A22245 for ; Fri, 9 Oct 2020 08:18:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Vto18k3o"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="EHfR7LVY" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732708AbgJIISY (ORCPT ); Fri, 9 Oct 2020 04:18:24 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:56492 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732337AbgJIISX (ORCPT ); Fri, 9 Oct 2020 04:18:23 -0400 Date: Fri, 9 Oct 2020 10:18:20 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1602231502; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=uVNpfS1pDgfKgE0j5KH7ugPaGZjN/OuepCzg8dpUzZc=; b=Vto18k3o+T1AK3MkhkvUp6ZaWqYqrY4dvS0Dm/jdK4NJucl5pmxkALFHbJZ5EsDBtU8Qv6 2ozPQ+Yksp8njZZZjIHhibFsPwYipz/SSyv7WqIb8mk/rLu127YXQVCvkzlvXwMJl/zFwh v/PEBmtxmriww4dXgAF6xz1CU3nslog0+SS+IWq+mUfdT/65bXaMq1E8/nxXzNC9HY3ItK AkGhV7KXS1GP4HY+TtwLY6cMdovOkmd7YDYzz3hbYFm//5oFKrkR6gfbE8aSrJ2XTnUnoX 0wsbxR8w6KWbtlKmBoi2sdhZI7Cb4OomMpWEEWeamJdJG5cJ5n0bYacs+XxPkw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1602231502; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=uVNpfS1pDgfKgE0j5KH7ugPaGZjN/OuepCzg8dpUzZc=; b=EHfR7LVYDl1o236GGxjGuDikI4trDrSWwK9eR82JU4M4H4oCCBQRR+zhrp7yWRLsWduKap AqLqjqxWJMMjwZCw== From: Sebastian Andrzej Siewior To: Russell King - ARM Linux admin Cc: Xiaoming Ni , dima@arista.com, will@kernel.org, jpoimboe@redhat.com, akpm@linux-foundation.org, christian.brauner@ubuntu.com, viro@zeniv.linux.org.uk, ldufour@linux.ibm.com, amanieu@gmail.com, walken@google.com, ben.dooks@codethink.co.uk, tglx@linutronix.de, mingo@kernel.org, vincent.whitchurch@axis.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, wangle6@huawei.com, luohaizheng@huawei.com Subject: Re: [PATCH] arm:traps: Don't print stack or raw PC/LR values in backtraces Message-ID: <20201009081820.jargnmck6zfkzegx@linutronix.de> References: <20201009075957.110017-1-nixiaoming@huawei.com> <20201009080849.GM1551@shell.armlinux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20201009080849.GM1551@shell.armlinux.org.uk> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-10-09 09:08:50 [+0100], Russell King - ARM Linux admin wrote: > I am really not happy about this - it hurts at least my ability to > debug the kernel when people post oopses to the mailing list. If > people wish to make the kernel harder to debug, and are prepared > to be told "your kernel is undebuggable" then this patch is fine. I haven't look at the patch but don't they keep/add the representation: PC: symbol+offset/size LR: symbol+offset/size ? This is needed at very least as a replacement for the missing address. Sebastian